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553143222 = 23310243393
BaseRepresentation
bin100000111110000…
…100101110110110
31102112211120212000
4200332010232312
52113101040342
6130515440130
716464432312
oct4076045666
91375746760
10553143222
11264264765
121352b6046
138a7a10a8
145366ab42
153386444c
hex20f84bb6

553143222 has 16 divisors (see below), whose sum is σ = 1229207280. Its totient is φ = 184381056.

The previous prime is 553143197. The next prime is 553143247. The reversal of 553143222 is 222341355.

It is a happy number.

553143222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (553143197) and next prime (553143247).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5121643 + ... + 5121750.

It is an arithmetic number, because the mean of its divisors is an integer number (76825455).

Almost surely, 2553143222 is an apocalyptic number.

553143222 is an abundant number, since it is smaller than the sum of its proper divisors (676064058).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

553143222 is a wasteful number, since it uses less digits than its factorization.

553143222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10243404 (or 10243398 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 553143222 is about 23518.9970449422. The cubic root of 553143222 is about 820.8790998374.

Adding to 553143222 its reverse (222341355), we get a palindrome (775484577).

The spelling of 553143222 in words is "five hundred fifty-three million, one hundred forty-three thousand, two hundred twenty-two".

Divisors: 1 2 3 6 9 18 27 54 10243393 20486786 30730179 61460358 92190537 184381074 276571611 553143222